In-duct flue gas conditioning system

Patent · Tue Aug 31 04:00:00 EDT 1993

OSTI ID:6030443

Wright, R A

In a system for conditioning flue gas generated by a boiler furnace prior to its emission to the atmosphere, including conduit means for conducting a flow of flue gas from said boiler furnace to the atmosphere and an electrostatic precipitator located in said conduit means for electrostatically removing particulate matter entrained in the flue gas, the improvement is described comprising: an assembly arranged upstream of the electrostatic precipitator for converting a portion of sulfur dioxide contained in the flue gas flow to sulfur trioxide, said conversion assembly including catalytic conversion means having an operative position wherein a substantial portion of the flue gas flow passes through said catalytic converter for converting a portion of the sulfur dioxide contained in the flue gas flow to sulfur trioxide, and an inoperative position, wherein the flue gas flow does not pass through said catalytic conversion means said catalytic conversion means being movable and said assembly including means to move the catalytic conversion means between said operative and inoperative positions based upon the need for or lack of need for conditioning of the flue gas flow.

• Assignee: Wilhelm Environmental Technologies, Inc., Indianapolis, IN (United States)
• Patent Number(s): A; US 5240470
• Application Number: PPN: US 7-907159
• OSTI ID: 6030443
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
AIR POLLUTION CONTROL
ASHES
BOILERS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
CONTROL
CONTROL EQUIPMENT
DEASHING
DESIGN
EFFICIENCY
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FLOW REGULATORS
FLUE GAS
FLY ASH
GASEOUS WASTES
OPERATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REFORMER PROCESSES
REMOVAL
RESIDUES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFUR TRIOXIDE
SYNTHESIS
WASTES